The same with 'seeking', sometimes i push the buttom and after 15 seconds it begins to seek. And the same with 'off' button.

This is a known bug in the beta version. It is already on the internal bug list. This bug does not happen in the non-beta "final" software 1.03. If you wish to downgrade to the non-beta software to avoid this bug, be advised that you must also downgrade Emplode, and Hijack does not work with it. The non-beta version also cannot seek properly in VBR files.

But, when i move the volume (or balance, or fader...) and the indication is still on the screen, any push of any buttom CLEARS the indication instead doing its function.

This has been one of my long-term gripes as well. It is on the internal bug list, still. If I recall correctly, it does not happen when you are using the remote control, only the front panel.

I guess if I turn down the volume, and just then push 'pause', it goes to pause, and I haven't to press twice to clear the screen and then pause...

Actually, if you're using the front panel, you do. The first press of the top button clears the screen, the second press pauses. If you time it poorly (press the "up" button for the purpose of clearing the screen, but you do it late), then the player pauses when you did not intend it to. The best work-around to this is to get in the habit of using the "down" button instead of the "up" button to clear this screen.

I agree that this is very irritating.